422305220500 has 48 divisors (see below), whose sum is σ = 922443067728. Its totient is φ = 168898560000.

The previous prime is 422305220429. The next prime is 422305220587. The reversal of 422305220500 is 5022503224.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 12054722436 + 410250498064 = 109794^2 + 640508^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3785520 + ... + 3895480.

It is an arithmetic number, because the mean of its divisors is an integer number (19217563911).

Almost surely, 2^422305220500 is an apocalyptic number.

It is an amenable number.

422305220500 is an abundant number, since it is smaller than the sum of its proper divisors (500137847228).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

422305220500 is a wasteful number, since it uses less digits than its factorization.

422305220500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117661 (or 117649 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

Adding to 422305220500 its reverse (5022503224), we get a palindrome (427327723724).

The spelling of 422305220500 in words is "four hundred twenty-two billion, three hundred five million, two hundred twenty thousand, five hundred".